CN209328005U - A kind of flexibility touch module - Google Patents
A kind of flexibility touch module Download PDFInfo
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- CN209328005U CN209328005U CN201920331084.5U CN201920331084U CN209328005U CN 209328005 U CN209328005 U CN 209328005U CN 201920331084 U CN201920331084 U CN 201920331084U CN 209328005 U CN209328005 U CN 209328005U
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Abstract
The utility model provides a kind of flexible touch module, and the touch module includes the OLED mould group stacked gradually from top to bottom, touches mould group and flexible cover plate；There is the first optical adhesive layer between the touch mould group and flexible cover plate, there is the second optical adhesive layer between the OLED mould group and touch mould group；The touch mould group includes touch sensing；The OLED mould group includes the support membrane stacked gradually from top to bottom, OLED display screen, rotatory polarization piece；Buffer layer is provided with below the support membrane；It is additionally provided with dottle pin layer above the support membrane, the dottle pin layer is between support membrane and OLED display screen.The application between support membrane and OLED display screen by being provided with dottle pin layer, touch sensing and OLED display screen is set to be located at the neutral line of entire touch module, it is almost nil that touch sensing is located at the stress being subject to when the neutral line of mould group, the stress deformation for reducing touch sensing, avoiding touch module bending leads to problems such as touch pattern be broken and lead to line short.
Description
Technical field
The utility model relates generally to technical field of touch control, relates more specifically to a kind of flexible touch module.
Background technique
Flexible screen technology receives consumer and the universal attention of industrial circle in recent years and pursues.Future is with flexible screen skill
The continuous development of art and perfect, the flexible screen for being able to achieve any bending will become an important developing direction.With flexibility
The development of screen, the requirement to flexible screen are constantly promoted, as bending fold is increasing, the requirement for deformation is higher and higher, can
It is required by property also higher and higher.How reasonable design is come the higher demand that promotes the performance of flexible screen, meet market, Cai Nengti
Rise the competitiveness of product in market.
During bending, outer layer reels to be stretched material, and internal layer is squeezed, have on its section one neither tension again not by
The direct stress value of each point is almost nil on the transition zone of pressure, the cross section of transition zone and the intersection of stress plane, this transition zone
The referred to as neutral line of material.
Existing flexibility touch module, structure are generally OLED, touch sensing SENSOR, cover board, flexible touch-control mould
For group in bending, touch sensing SENSOR is not on the neutral line of bending.By multiple bending, touch sensing
SENSOR often occurs touch pattern fracture and leads to line short.
Utility model content
In order to solve the above deficiency, the utility model provides a kind of flexible touch module, the touch module include from
Under to the OLED mould group above stacked gradually, touch mould group and flexible cover plate；Have the between the touch mould group and flexible cover plate
One optical adhesive layer has the second optical adhesive layer between the OLED mould group and touch mould group；The touch mould group includes that touch-control passes
Sensor；The OLED mould group includes the support membrane stacked gradually from top to bottom, OLED display screen, rotatory polarization piece；The support membrane
Lower section is provided with buffer layer；It is additionally provided with dottle pin layer above the support membrane, the dottle pin layer is located at support membrane and OLED is shown
Between screen.
Further, the dottle pin layer is third optical adhesive layer, and the third optical adhesive layer is OCA optical adhesive layer, described
Third optical adhesive layer with a thickness of between 50 ~ 75um.
Further, the dottle pin layer is pet polymer layer.
Further, barrier layer is additionally provided between the OLED display screen and rotatory polarization piece.
Further, the rotatory polarization piece includes quarter-wave plate and line polarisation piece.
Further, the line polarisation piece includes First Line polaroid and the second line polarisation piece, First Line polaroid and
Two wires polaroid is arranged in 45 ° -75 ° of angle.
Further, first optical adhesive layer and the second optical adhesive layer are OCA optical adhesive layer.
Further, second optical adhesive layer with a thickness of 50 ~ 100um.
Further, the touch sensing includes flexible base board and conductive layer, and PET protection is provided on the conductive layer
Layer.
Compared with the existing technology, the beneficial effects of the utility model are as follows:
The application shows touch sensing and OLED by being provided with dottle pin layer between support membrane and OLED display screen
Screen is located at the neutral line of entire touch module, and it is almost nil that touch sensing is located at the stress being subject to when the neutral line of mould group, subtracts
The stress deformation for having lacked touch sensing, avoiding touch module and bending causes touch pattern to be broken and leads to line short etc. to ask
Topic.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of flexible touch module described in the utility model embodiment.
Appended drawing reference:
1- flexible cover plate, the first optical adhesive layer of 2-, 3- touch sensing, the second optical adhesive layer of 4-, 5- rotatory polarization piece, 6- resistance
Interlayer, 7-OLED display screen, 8- dottle pin layer, 9- support membrane, 10- buffer layer.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model embodiment provides a kind of flexible touch module.Touch module includes stacking gradually from top to bottom
OLED mould group touches mould group and flexible cover plate 1.It touches mould group and flexible cover plate 1 is bonded by optical cement, touching mould group
There is the first optical adhesive layer 2 between flexible cover plate 1.OLED mould group and touch mould group are bonded also by optical cement,
There is the second optical adhesive layer 4 between OLED mould group and touch mould group.Touch after mould group is bonded with flexible cover plate 1, then with OLED mould
Group is bonded.
Touching mould group includes touch sensing 3(SENSOR), the conductive layer of touch sensing 3 can be conductive for metal grill
Layer or nano-silver conductive layer.The conductive layer of touch sensing 3 is generally located on flexible base board.Touch sensing 3 it is soft
Property substrate be the film, PET(Polyethylene terephthalate, poly terephthalic acid class plastics) or PI(polyamides it is sub-
Amine), the preferred PI material of flexible base board.
OLED mould group includes OLED display screen 7, and buffer layer 10 and support membrane 9 are additionally provided with below OLED display screen 7.OLED
Rotatory polarization piece 5 is provided with above display screen 7.Dottle pin layer 8 is provided between support membrane 9 and OLED display screen 7.
Entire touch module includes the buffer layer 10, support membrane 9, dottle pin layer 8, OLED display screen stacked gradually from top to bottom
7, rotatory polarization piece 5, the second optical adhesive layer 4, touch sensing 3(SENSOR), the first optical adhesive layer 2, flexible cover plate 1.
OLED display screen 7 is flexible display screen.Buffer layer 10 is preferably foam, and buffer layer 10 provides buffering for entire mould group
Protective effect.The purpose of support membrane 9 is the substrate in order to protect flexible OLED display 7, is propped up flexible OLED display 7
The production such as polyvinyl alcohol and Triafol T, release film specifically can be used in support.The effect of rotatory polarization piece 5: OLED mould group
It because having metal electrode structure, will appear indoors or under extraneous strong light reflective, cause the interference to display picture, and dark
The not dark phenomenon of picture.Rotatory polarization piece 5 can solve this problem, and the environment light of extraneous incidence is made to pass through line polarisation piece and four
After/mono- wave plate, become the reflected light vertical with the polarization direction of line polarisation piece to be stopped by line polarisation piece.
The dottle pin layer 8 being arranged between support membrane 9 and OLED display screen 7 has substantial function unlike rotatory polarization piece 5
On effect.The effect of dottle pin layer 8, be by the stressor layers position transfer of entire touch module to lean on near-lying mode group marginal position,
Touch sensing 3 and OLED display screen 7 is set to be located at the neutral line of entire touch module.
The application keeps touch sensing 3 and OLED aobvious by the way that dottle pin layer 8 is arranged between support membrane 9 and OLED display screen 7
Display screen 7 is located at the neutral line of entire touch module, and touch sensing 3 is located at the stress being subject to when the neutral line of mould group and is almost
Zero, reduce the stress deformation of touch sensing 3, avoiding touch module bending causes touch pattern to be broken and cause route short
The problems such as road.
As an embodiment of dottle pin layer 8, dottle pin layer 8 can be pet polymer layer.Pet polymer layer have compared with
Good resistance to adaptability to changes.
As another embodiment of dottle pin layer 8, dottle pin layer 8 is third optical adhesive layer, and the third optical adhesive layer is
OCA optical adhesive layer.With use pet polymer as dottle pin layer 8 compared with, OCA not only has higher resistance to adaptability to changes, passes touch-control
The stress that sensor 3 is subject to becomes smaller；And OCA is convenient for promoting as common used material, and in addition OCA has higher cost performance, increases
OCA optical adhesive layer is small as the price entire effect of 8 pairs of dottle pin layer entire mould groups.
Although being bonded between different film layers often through optical adhesive layer, in fact, being used as fitting bonded adhesives
Optical adhesive layer thinner thickness, generally 10um or so.
In the present embodiment, third optical adhesive layer OCA is the glue-line thickeied.The more thick easy absorption strain of OCA, it is preferred that make
For dottle pin layer 8 third optical adhesive layer with a thickness of between 50 ~ 75um.
This is on attaching process, it is preferred that first large stretch of thickening third optical adhesive layer is bonded with support membrane 9, it is cut
Afterwards, small pieces are made, later, the small pieces after third optical adhesive layer is bonded with support membrane 9 are pasted with OLED display screen 7 again, by this scheme
Production can reduce contraposition deviation, reduce fitting difficulty.
Specifically, rotatory polarization piece 5 includes quarter-wave plate and line polarisation piece.
As a kind of improvement to rotatory polarization piece 5, line polarisation piece includes First Line polaroid and the second line polarisation piece, and first
Line polarisation piece and the second line polarisation piece are a certain included angle setting.
Compared with traditional rotatory polarization piece 5 only a line polarisation piece, by increasing on the basis of traditional round polaroid 5
Add a line polarisation chip architecture, and has made First Line polaroid and the second line polarisation piece setting at a certain angle, it is improved
When rotatory polarization piece 5 is used for OLED display screen 7, the reflectivity of light in full band range can be made to reach unanimity, so that contrast is improved,
Make OLED mould group that there is better visual effect.Preferably, the angle of First Line polaroid and the second line polarisation piece be 45 °-
75°。
First optical adhesive layer 2 is OCA optical adhesive layer.Second optical adhesive layer 4 is OCA optical adhesive layer.
Preferably, the second optical adhesive layer 4 be thicken glue-line, glue-line with a thickness of 50 ~ 100um.It is furthermore preferred that the second light
Glue-line 4 is learned with a thickness of 75um.The more thick easy absorption strain of OCA, the glue-line thickeied between touch sensing 3 and rotatory polarization piece 5 is to touching
Controlling mould group has protective effect.
As a kind of improvement to touch sensing 3, matcoveredn is set on the electrically conductive, and pet polymer layer is because of its tool
There is higher resistance to adaptability to changes, protective layer is preferably PET protective layer.
Touch sensing 3 can be received by making SENSOR pattern using nano-silver thread on film flexible base board to be formed
Rice silver conductive layer, SENSOR pattern can be bilayer, be also possible to single layer.PET protective layer is attached at conductive layer later
It is protected on pattern.After SENSOR binds FPC, rotatory polarization piece 5 is attached on PET protective layer.
Preferably, it is additionally provided with barrier layer 6, also known as water oxygen barrier layer 6 in OLED display screen 7, barrier layer 6 is that setting exists
Thin film on OLED.Since OLED device is very sensitive to water oxygen etc., more harsh, device is required to water and oxygen barrier property
The few water or oxygen of middle infiltration can oxidized metal cathode, make organic layer inactivation, generate the risks such as short circuit, therefore flexible parent metal
The water oxygen barrier property to be guaranteed.
Barrier layer 6 primarily serves the effect of isolation water oxygen impurity, protects the electrode material and luminescent device of OLED.Barrier layer
6 generally include saw blade vinyl chloride (PVDC), ethylene-vinyl alcohol copolymer (EVOH), polyamide (PA) etc..
Compared with the existing technology, the beneficial effects of the utility model are as follows:
The application is located at touch sensing with OLED display screen by the way that rotatory polarization piece to be attached on touch sensing
The neutral line of entire touch module reduces touch-control sensing by making touch sensing be located at the neutral line of entire touch module
The stress deformation of device, avoiding touch module bending leads to problems such as touch pattern be broken and lead to line short.
It should be understood that for those of ordinary skills, it can be modified or changed according to the above description,
All these improvement or transformation all should belong within the protection scope of the appended claims for the utility model.
Claims (9)
1. it is a kind of flexibility touch module, which is characterized in that the touch module include the OLED mould group stacked gradually from top to bottom,
Touch mould group and flexible cover plate；Between the touch mould group and flexible cover plate have the first optical adhesive layer, the OLED mould group and
Touching has the second optical adhesive layer between mould group；The touch mould group includes touch sensing；The OLED mould group includes under
To support membrane, OLED display screen, the rotatory polarization piece above stacked gradually；Buffer layer is provided with below the support membrane；
It is additionally provided with dottle pin layer above the support membrane, the dottle pin layer is between support membrane and OLED display screen.
2. flexibility touch module according to claim 1, which is characterized in that the dottle pin layer is third optical adhesive layer, institute
State third optical adhesive layer be OCA optical adhesive layer, the third optical adhesive layer with a thickness of between 50 ~ 75um.
3. flexibility touch module according to claim 1, which is characterized in that the dottle pin layer is pet polymer layer.
4. flexibility touch module according to claim 1, which is characterized in that between the OLED display screen and rotatory polarization piece
It is additionally provided with barrier layer.
5. flexibility touch module according to claim 1, which is characterized in that the rotatory polarization piece includes quarter-wave plate
With line polarisation piece.
6. flexibility touch module according to claim 5, which is characterized in that the line polarisation piece includes First Line polaroid
With the second line polarisation piece, First Line polaroid and the second line polarisation piece are arranged in 45 ° -75 ° of angle.
7. flexibility touch module according to claim 1, which is characterized in that first optical adhesive layer and the second optical cement
Layer is OCA optical adhesive layer.
8. flexibility touch module according to claim 7, which is characterized in that second optical adhesive layer with a thickness of 50 ~
100um。
9. it is according to claim 1 flexibility touch module, which is characterized in that the touch sensing include flexible base board and
Conductive layer is provided with PET protective layer on the conductive layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920331084.5U CN209328005U (en) | 2019-03-15 | 2019-03-15 | A kind of flexibility touch module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920331084.5U CN209328005U (en) | 2019-03-15 | 2019-03-15 | A kind of flexibility touch module |
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| Publication Number | Publication Date |
|---|---|
| CN209328005U true CN209328005U (en) | 2019-08-30 |
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| CN201920331084.5U Active CN209328005U (en) | 2019-03-15 | 2019-03-15 | A kind of flexibility touch module |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110647213A (en) * | 2019-09-25 | 2020-01-03 | Oppo（重庆）智能科技有限公司 | Folding display module and electronic equipment |
| CN113270025A (en) * | 2020-02-14 | 2021-08-17 | 华为技术有限公司 | Flexible screen cover plate, flexible display panel, flexible screen and foldable electronic equipment |
| CN113724584A (en) * | 2020-05-26 | 2021-11-30 | 京东方科技集团股份有限公司 | Folding display module and display device |
| CN114220356A (en) * | 2022-01-06 | 2022-03-22 | 河北科技大学 | Flexible module of flexible screen and preparation method thereof |
| CN115691335A (en) * | 2022-11-02 | 2023-02-03 | 苏州恒悦新材料有限公司 | OLED supports membrane based on flexible screen body |
| TWI804051B (en) * | 2021-11-15 | 2023-06-01 | 大陸商宸美（廈門）光電有限公司 | Protective assembly and touch module |
-
2019
- 2019-03-15 CN CN201920331084.5U patent/CN209328005U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110647213A (en) * | 2019-09-25 | 2020-01-03 | Oppo（重庆）智能科技有限公司 | Folding display module and electronic equipment |
| CN113270025A (en) * | 2020-02-14 | 2021-08-17 | 华为技术有限公司 | Flexible screen cover plate, flexible display panel, flexible screen and foldable electronic equipment |
| CN113724584A (en) * | 2020-05-26 | 2021-11-30 | 京东方科技集团股份有限公司 | Folding display module and display device |
| WO2021238442A1 (en) * | 2020-05-26 | 2021-12-02 | 京东方科技集团股份有限公司 | Foldable display module and display device |
| CN113724584B (en) * | 2020-05-26 | 2022-07-05 | 京东方科技集团股份有限公司 | Folding display module and display device |
| TWI804051B (en) * | 2021-11-15 | 2023-06-01 | 大陸商宸美（廈門）光電有限公司 | Protective assembly and touch module |
| CN114220356A (en) * | 2022-01-06 | 2022-03-22 | 河北科技大学 | Flexible module of flexible screen and preparation method thereof |
| CN115691335A (en) * | 2022-11-02 | 2023-02-03 | 苏州恒悦新材料有限公司 | OLED supports membrane based on flexible screen body |
| CN115691335B (en) * | 2022-11-02 | 2024-02-13 | 苏州恒悦新材料股份有限公司 | OLED support film based on flexible screen body |
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